CN-121987903-A - Medical ventilation device

CN121987903ACN 121987903 ACN121987903 ACN 121987903ACN-121987903-A

Abstract

A medical ventilation device comprises an air suction branch, a high-frequency oscillation generation module, an oxygen concentration acquisition module, a first valve module and a control module, wherein the air suction branch is respectively connected with an air source interface and an air pipeline connected with a respiratory system of a patient, the air suction branch comprises a main air pipeline and a side air pipeline communicated with the main air pipeline, the high-frequency oscillation generation module is communicated with the main air pipeline and is used for generating high-frequency oscillation on ventilation air of the air suction branch, the oxygen concentration acquisition module is arranged in the side air pipeline and is used for detecting the concentration of oxygen in the ventilation air, the first valve module is arranged in the side air pipeline and is used for controlling the communication between the side air pipeline and the main air pipeline, the control module is used for controlling the ventilation air supplied to the patient, and the control module is also used for controlling the first valve module to block the communication between the side air pipeline and the main air pipeline during detection and obtaining the monitoring result of the oxygen concentration acquisition module during detection.

Inventors

HUANG WEILI
WU HAO
LUO QICHAO

Assignees

深圳迈瑞生物医疗电子股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241108

Claims (14)

1. A medical ventilation device, comprising: The air suction branch is respectively connected with an air source interface and an air pipeline connected with a respiratory system of a patient, wherein the air suction branch comprises a main air channel and a side air channel communicated with the main air channel; The high-frequency oscillation generation module is communicated with the main gas path and is used for generating high-frequency oscillation for ventilation gas of the suction branch; The oxygen concentration acquisition module is arranged in the bypass gas path and is used for detecting the concentration of oxygen in the ventilation gas; The first valve module is arranged in the bypass air passage and used for controlling the communication between the bypass air passage and the main air passage; a control module for controlling ventilation gas provided to the patient; the control module is further used for controlling the first valve module to block communication between the bypass air channel and the main air channel during detection and obtaining a monitoring result of the oxygen concentration acquisition module during detection.
2. The medical ventilator of claim 1, wherein the first valve module comprises a first control valve for controlling the on-off of the main gas circuit to the oxygen concentration collection module.
3. The medical ventilator of claim 2, wherein the oxygen concentration collection module has a collection air inlet and a collection air outlet, and the first control valve is disposed between the collection air inlet and the main air path and/or between the collection air outlet and the main air path.
4. The medical ventilator of claim 2, wherein the first valve module comprises a second control valve for controlling the on-off of the main gas circuit to the oxygen concentration collection module; The oxygen concentration acquisition module is provided with an acquisition air inlet and an acquisition air outlet; the first control valve is arranged on one side of the collection air inlet of the oxygen concentration collection module, and the second control valve is arranged on one side of the collection air outlet of the oxygen concentration collection module.
5. The medical ventilation device of claim 4, wherein the second control valve and the first control valve disconnect communication between the main gas circuit and the oxygen concentration acquisition module during detection by the oxygen concentration acquisition module.
6. The medical ventilation device of claim 2, wherein the first valve module is at least any one of a one-way valve and a switching valve.
7. The medical ventilator of claim 6, wherein the on-off valve is a solenoid valve or an on-off valve designed for an electromagnet/voice coil motor.
8. The medical ventilator of claim 1, further comprising a ventilation resistance module disposed in the main gas path for channeling ventilation gas flowing through the main gas path into the bypass gas path.
9. The medical ventilation device of claim 8, wherein the medical ventilation device comprises a plurality of medical ventilation devices, A vent hole is formed in the ventilation resistance module so that gas in the main gas path flows through the vent hole; The air guide structure is provided with a plurality of air guide holes, and the air guide holes penetrate through the air guide structure along the axial direction of the air vent.
10. The medical ventilation device of claim 8, wherein the ventilation resistance module includes a mount and an air block mounted in the main air path by the mount for regulating the flow of ventilation gas through the main air path.
11. The medical ventilation device according to any one of claims 1 to 10, characterized in that, The main branch comprises an oxygen branch, an air branch and a mixed gas circuit; One end of the oxygen gas path is an oxygen interface and is used for connecting an oxygen source; One end of the air branch is an air interface and is used for communicating with air; the other ends of the oxygen branch and the air branch are communicated with the mixing gas circuit, and the mixing gas circuit is used for mixing oxygen and air and then conveying the mixed oxygen and air to the patient.
12. The medical ventilator of claim 1 further comprising a second valve module disposed between the high frequency oscillation generating device and the main gas circuit for controlling the high frequency oscillation generating device to generate high frequency oscillations to the ventilation gas.
13. The medical ventilator of claim 1, further comprising a safety valve disposed in the main gas path for venting the inspiratory limb.
14. The medical ventilation device of claim 1, wherein the oxygen concentration acquisition module is an ultrasonic oxygen sensor.

Description

Medical ventilation device Technical Field The application relates to the technical field of medical equipment, in particular to medical ventilation equipment. Background Most of the existing medical ventilation equipment monitors oxygen concentration by high-frequency ventilation in an air suction branch through an oxygen battery, the oxygen battery belongs to consumables, and needs to be replaced regularly, so that the maintenance cost is high, the operation is inconvenient, and the resource waste is easy to cause. Disclosure of Invention The application provides medical ventilation equipment, which can detect the oxygen concentration in an air suction branch through an oxygen concentration acquisition module, and can prevent communication between a bypass air passage and a main air passage during detection by utilizing a first valve module, so that gas in the bypass air passage can stop flowing, numerical jitter of the oxygen concentration acquisition module during detection of the oxygen concentration is avoided, and the problem of the cost of detecting the oxygen concentration by using an oxygen battery is solved. The present application provides a medical ventilation device comprising: The air suction branch is respectively connected with an air source interface and an air pipeline connected with a respiratory system of a patient, wherein the air suction branch comprises a main air channel and a side air channel communicated with the main air channel; The high-frequency oscillation generation module is communicated with the main gas path and is used for generating high-frequency oscillation for ventilation gas of the suction branch; The oxygen concentration acquisition module is arranged in the bypass gas path and is used for detecting the concentration of oxygen in the ventilation gas; The first valve module is arranged in the bypass air passage and used for controlling the communication between the bypass air passage and the main air passage; a control module for controlling ventilation gas provided to the patient; the control module is further used for controlling the first valve module to block communication between the bypass air channel and the main air channel during detection and obtaining a monitoring result of the oxygen concentration acquisition module during detection. In the medical ventilation device according to an embodiment of the present application, the first valve module includes a first control valve for controlling on-off of the main gas path and the oxygen concentration collection module. In the medical ventilation device according to an embodiment of the present application, the oxygen concentration collection module has a collection air inlet and a collection air outlet, and the first control valve is disposed between the collection air inlet and the main air path and/or between the collection air outlet and the main air path. In the medical ventilation device according to an embodiment of the present application, the first valve module includes a second control valve for controlling on-off of the main gas path and the oxygen concentration collection module; The oxygen concentration acquisition module is provided with an acquisition air inlet and an acquisition air outlet; the first control valve is arranged on one side of the collection air inlet of the oxygen concentration collection module, and the second control valve is arranged on one side of the collection air outlet of the oxygen concentration collection module. In the medical ventilator according to the embodiment of the present application, the second control valve and the first control valve disconnect communication between the main gas passage and the oxygen concentration collection module during detection by the oxygen concentration collection module. In the medical ventilator according to an embodiment of the present application, the first valve module is at least any one of a check valve and an on-off valve. In the medical ventilation device according to the embodiment of the application, the switching valve is a solenoid valve or a switching valve designed for an electromagnet/voice coil motor. . In the medical ventilation device according to an embodiment of the present application, the medical ventilation device further includes a ventilation resistance module, which is disposed in the main gas path and is configured to enable ventilation gas flowing through the main gas path to flow into the bypass gas path. In the medical ventilation device according to an embodiment of the present application, a ventilation hole is formed in the ventilation resistance module so that the gas in the main gas path flows through the ventilation hole; The air guide structure is provided with a plurality of air guide holes, and the air guide holes penetrate through the air guide structure along the axial direction of the air vent. In the medical ventilation device according to an embodiment of the present application, the ventil